RGD Reference Report - CCL20 Displays Antimicrobial Activity Against Cryptosporidium parvum, but Its Expression Is Reduced During Infection in the Intestine of Neonatal Mice. - Rat Genome Database

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CCL20 Displays Antimicrobial Activity Against Cryptosporidium parvum, but Its Expression Is Reduced During Infection in the Intestine of Neonatal Mice.

Authors: Guesdon, William  Auray, Gaël  Pezier, Tiffany  Bussière, Françoise I  Drouet, Françoise  Le Vern, Yves  Marquis, Mathilde  Potiron, Laurent  Rabot, Sylvie  Bruneau, Aurelia  Werts, Catherine  Laurent, Fabrice  Lacroix-Lamandé, Sonia 
Citation: Guesdon W, etal., J Infect Dis. 2015 Oct 15;212(8):1332-40. doi: 10.1093/infdis/jiv206. Epub 2015 Apr 2.
RGD ID: 40925950
Pubmed: PMID:25838265   (View Abstract at PubMed)
DOI: DOI:10.1093/infdis/jiv206   (Journal Full-text)

CCL20 is a chemokine with antimicrobial activity. We investigated its expression and role during neonatal cryptosporidiosis, a worldwide protozoan enteric disease leading to severe diarrhea. Surprisingly, during infection by Cryptosporidium parvum, CCL20 production by the intestine of neonatal mice is reduced by a mechanism independent both of the enteric flora and of interferon γ, a key cytokine for the resolution of this infection. However, oral administration of recombinant CCL20 to neonatal mice significantly reduced the parasite load by a mechanism that was independent of immune cell recruitment and occurred instead by direct cytolytic activity on free stages of the parasite. MiR21 functionally targets CCL20 and is upregulated during the infection, thus contributing to the downregulation of the chemokine. Our findings demonstrate for the first time the direct antiparasitic activity of CCL20 against an enteric protozoan and its downregulation during C. parvum infection, which is detrimental to parasite clearance.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
cryptosporidiosis  ISOMir21a (Mus musculus)40925950; 40925950RNA:increased expression:ileumRGD 
cryptosporidiosis  IEP 40925950RNA:increased expression:ileumRGD 

Objects Annotated

Genes (Rattus norvegicus)
Mir21  (microRNA 21)

Genes (Mus musculus)
Mir21a  (microRNA 21a)

Genes (Homo sapiens)
MIR21  (microRNA 21)


Additional Information